|Thesis abstract: |
FARCOS (Femtoscope ARay for COrrelation and Spectroscopy) is a novel detection system featuring high angular and energy resolution able to reconstruct the particles momentum at high precision for different physical cases in heavy-ion collision nuclear physics experiments at intermediate energies. It is based on Double Sided Silicon Strip Detectors (DSSSD) and CsI(Tl) scintillation crystals and its goal is to achieve a full particle identification and correlation by exploiting, together with the standard identification techniques ?E-E, ToF), Pulse Shape Analysis techniques both on the CsI(Tl) signals and, more ambitiously, on the DSSSD in order to lower the energy identification threshold. The possibility to use our digital Data Acquisition system for the direct waveforms digitization would be beneficial to this purpose. In order to optimize the DSSSD performances we carefully investigated the fundamental physical parameters such as dark currents, capacitances and related entities as a function of the applied bias and of the frequency. In addition, we performed a detailed amplitude and position detectors response mapping exploiting the monochromatic pulsed ion beams available at the INFN-LaBeC facility (Firenze). Special attention is given to the impact of inter-strip beam incidence on the shape of the induced signals, among the main causes that can greatly spoil the overall identification capabilities. We also present the development and the full qualification of a novel simulation tool for the 3D electron-hole transport computation in 2D semiconductor detectors suitable for high charge injection levels and for highly segmented detectors as a powerful and reliable tool to investigate the signal formation dynamics in the DSSSD at operating conditions. In this respect we report a batch of dedicated simulations specifically targeted to help clarifying the experimental results obtained with the inter-strip incidence. To improve also our knowledge of the CsI(Tl) crystals scintillation properties, we extracted the time constants and intensities defining the scintillation response by a direct fitting of the digitized waveforms, showing their dependence on the energy, charge and mass -- at least in a given range -- of the impinging particle. On these basis we probed the merits of novel particle identification matrices. Lastly, we show some preliminary results of the first on-beam test involving full FARCOS telescopes carried out at the INFN-LNS laboratories (Catania) with the main purpose to test the overall system functionality and to probe the light yield non-uniformity of the CsI(Tl) crystals exploiting known reactions. The overall performances, though susceptible of further improvements, are excellent.